Heat and Mass Transfer The heat is transferred by conduction, convection and radiation in Boiler furnaces None of these Melting of ice Condensation of steam in condenser Boiler furnaces None of these Melting of ice Condensation of steam in condenser ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The ratio of surface convection resistance to the internal conduction resistance is known as Grashoff number Stanton number Biot number Prandtl number Grashoff number Stanton number Biot number Prandtl number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer If the energy radiated per second per sq. cm. of the surface for wave lengths lying between λ, and λ + dλ is represented by (eλ.dλ), then eλ is called None of these Absorptive power Emissive power Emissivity None of these Absorptive power Emissive power Emissivity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of air with rise in temperature Remain constant May increase or decrease depending on temperature Increases Decreases Remain constant May increase or decrease depending on temperature Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The unit of overall coefficient of heat transfer is kcal/m² hr °C kcal/m hr °C kcal/hr °C kcal/m² kcal/m² hr °C kcal/m hr °C kcal/hr °C kcal/m² ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Wien’s law states that the wave length corresponding to ________ is proportional to the absolute temperature. Minimum energy Maximum energy Both (A) and (B) None of these Minimum energy Maximum energy Both (A) and (B) None of these ANSWER DOWNLOAD EXAMIANS APP
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